The Phoropter: Optometry Equipment or Dinosaur?

Since the early 1900s, the phoropter has been a symbol of optometry, instantly recognizable in eye exams around the world. This ophthalmic device can sometimes seem like a “scary eye doctor machine,” but this device (also referred to as a refractor) is a main element in any comprehensive eye exam. However, in an era of advanced diagnostic technology and digital refraction systems, some wonder if the phoropter is still a useful tool, or if it has become a relic of the past.

At New England College of Optometry (NECO), we train future optometrists in both traditional and advanced techniques. NECO believes that digital advancements continue to transform optometry, but that the phoropter remains a valuable and relevant piece of equipment—when used in the right context.

Still working after 100 years

The phoropter is a manual refraction device that optometrists use to determine a patient’s refractive error and which eyeglasses or contact lens prescription will ensure the patient sees clearly. By presenting a series of lenses and images, the doctor will ask, “Which is better, one or two?” The optometrist fine-tunes a prescription based on the patient’s responses.

For over a century, the phoropter has served as the gold standard for subjective refraction, allowing clinicians to make precise adjustments for myopia (nearsightedness), hyperopia (farsightedness), astigmatism, and presbyopia.

Despite its reliability, some practitioners argue that the phoropter has limitations. Newer technologies can present greater efficiency and objectivity. Key concerns include the subjective nature of the device that relies on patients to give accurate results, and the time-intensive process can take much longer compared to digital refraction systems.

Advancements in optometric technology have led to the rise of digital phoropters and fully automated refraction systems. These tools offer faster refractions, objective measurements, improved patient comfort, and telemedicine integration.

However, the phoropter is far from obsolete. In fact, it continues to play an essential role in comprehensive eye care because fine-tuning a prescription requires patient feedback, something digital refractions alone cannot fully capture. Plus, doctors are able to anticipate needs of the patient based on past medical history and can adjust devices as needed without prompting.

Learn more about optometry equipment

At NECO, students are trained to master both traditional and modern refraction techniques. Learning how to use a phoropter and other optometry equipment builds critical skills in lens selection, patient communication, and clinical problem-solving. Becoming an optometrist is more than improving vision, it is also identifying potential harmful eye diseases and understanding which devices to utilize for optimized results for patients.

Rather than seeing phoropters and digital refraction systems as competitors, many optometrists believe in an integrated approach. Digital refraction tools may be used for efficiency, objectivity, and tech integration. While phoropters are used for customization and reliability.

At NECO, students in optometry school learn to combine these tools to deliver the best patient care while staying ahead in an increasingly technology-driven profession. There are no prerequisites for optometry college that include a full understanding of equipment, only to come prepared to learn about the many uses of these devices and where the profession is moving in the future.